The last half of March is a big time for game sales. Check out the big guns publishers sent to market last week and will send out next week in Japan.
Games Shipped on March 19:
Battlefield Hardline (360, Xbox One, PS3, PS4)
Biohazard/Resident Evil Revelations 2 (PS4, Xbox One)
Final Fantasy Type-0 HD (PS4, Xbox One)
Phantasy Star Online 2: Episode 3 (Vita)
Minecraft (Vita)
Mario vs. Donkey Kong (Wii-U, 3DS)
Devil Summoner: Soul Hackers (3DS)
Games Shipping on March 26:
Theatrhythm Dragon Quest (3DS)
Bloodborne (PS4)
Senran Kagura: Estival Versus (PS4,Vita)
Disgaea 5 (PS4)
Senkyo Hime 5 (PS3, PS4)
One Piece: Kaizoku Musou 3 (PS4, PS3)
Sword Art Online: Lost Song (PS3)
Friend Lover (Vita)
Pro Baseball Spirits 2015 (PS3, Vita)
Strategy: Daibota Kobo Shi (PS3)
Justy x Nasty (Vita)
New Atelier Rorona (3DS)
Restricted by the PS4's currently small userbase of only a million, Bloodborne and Disgaea 5 are probably not going to live up to the sales of their forefathers Dark Souls and Disgaea 4, respectively. Dark Souls sold 280,000 copies in its opening week, and Dark Souls 2 shifted 255,000. Disgaea 4 sold 80,000 in its debut. I expect Bloodborne and Disgaea 5 to sell "well" when compared to the average PS4 game, but I'll be very surprised if those figures turn up.
